Only root is able to login

[Gary Mulder]

Is root's shell /bin/sh? If not, then something is wrong with /bin/sh.

You should have another shell available to do some comparison testing (eg. 
/bin/csh). Use vipw  to change the abc user's shell to say /bin/csh.

Can you now login as abc? If so, then something is wrong with /bin/sh. If 
not, then it implies that the problem is not specifically with /bin/sh.

Assume you can login as abc using /bin/csh. Try simply running /bin/sh. 
Does it work? If not, then again /bin/sh is broke somehow, replace it with 
/bin/sh from another identical system (I run 4.10, sorry...)

Gary


--
Gary Mulder   <mailto:gary.mulder at infotechfl.com>
Info Tech, Inc.
5700 SW 34th Street, Suite 1235 Phone: (352) 381-4400
Gainesville, FL 32608 Fax: (352) 381-4444